Many infectious boils on scalp & face.

Hello Doctors, . I am very irritated with my current situation of scalp and face boils. . A year back I had started developing small small head boils. At that time I thought it was due to heat. But it started increasing. And also very painful. In a Year's time it started spreading on my face. And it starts coming back at the same spot again. I am tired of this, kindly help me how should I get rid of it and what kind of food should I eat and avoid aswell as even my food lifestyle is very unHealthy as I eat too much junk and too much sweets. I used to do use medical shampoo daily and for a month I took microdox LBX doxycycline. But not fruitful as it kept coming back. . It's been more than a year and too much painfull. Photos have been attached for reference. Please help.